Research Advances in Pollution and Carbon Mitigation Technologies for C5 Petroleum Resin Wastewater Treatment in the Yangtze River Basin

• • The Yangtze River Basin receives over 250 billion tons of wastewater annually, accounting for >40% of China's total discharge, underscoring the urgent need for efficient treatment technologies in the C5 petroleum resin sector. • • The petrochemical industry contributes approximately 20% of China's industrial carbon emissions, highlighting the necessity for integrated pollution and carbon mitigation strategies in wastewater treatment. • • Advanced oxidation processes (AOPs) such as catalytic ozonation have demonstrated high efficiency in degrading refractory organic pollutants, with studies reporting significant removal rates under optimized conditions (e.g., complete degradation of dinitrotoluene in high-strength wastewater). • • Membrane technologies, including nanofiltration with interlayers like Fe(III)-tannic acid, enhance the removal of organic micropollutants, achieving superior separation performance and antifouling properties, which are critical for petrochemical wastewater reuse.